Halobacteria are now recognized as archaea, rather than bacteria.
From the en.wikipedia.org
Halobacteria can grow aerobically or anaerobically.
From the en.wikipedia.org
Lastly, halobacteria are not bacteria at all.
From the foxnews.com
Parts of the membranes of halobacteria are purplish in color, and large blooms of Halobacteria appear reddish, from the pigment bacteriorhodopsin, related to the retinal pigment rhodopsin.
From the en.wikipedia.org
The process is unrelated to other forms of photosynthesis involving electron transport however, and halobacteria are incapable of fixing carbon from carbon dioxide.
From the en.wikipedia.org
Chlorophyll does not absorb green light because it first arose in organisms living in oceans where purple halobacteria were already exploiting photosynthesis.
From the en.wikipedia.org
The new organisms that then later came to dominate the extraction of light were selected to exploit those portions of the spectrum not used by the halobacteria.
From the en.wikipedia.org
More examples
Halophiles in saline environments such as the Dead Sea or salt flats
In taxonomy, the Halobacteria (also Halomebacteria) are a class of the Euryarchaeota, found in water saturated or nearly saturated with salt. They are also called halophiles, though this name is also used for other organisms which live in somewhat less concentrated salt water. ...
In taxonomy, Halobacterium is a genus of the Halobacteriaceae.